Sickle-grinder



(N0 Model.) 3 Sheets-Sheet 1.

G. W. (JLAYBOURNE.

SIGKLE GRINDER.

N0.298,l76. PatentedMaj 6,l8 84.

(N0 Model.) 3 Sheets-Sheet 2. C. W. CLAYBOURNE.

SICKLE GRINDER.

N0. 298,176. Patented May 6, 1884.

(N0 Model.) 3 Sheets-Sheet 3.

0. W; CLAYBOURNE.

SIGKLE GRINDER.

N0. 298,176. Patented May 6, 1884.

OOLIN W. OLAYBOURNE, OF QUINCY, ILLINOIS.

SiCKLE-GRINDER.

5PECIFICAI'ION forming part of Letters Patent N0. 298,176, dated May 6, 1884.

(N0 model.)

T0 all w7wm z't mnny ooncern:

Be it known that I, COLIN W. OLAYBORNE, 0f Quincy, in the connty of Ad2fms, Stute of I11inois, have invented cerbain 11ew and useful Improvements in Sickle-Grinders; and I d0 hereby dec1are that the following 1's a fu11, e1ea-r, and exact deseription thereof, reference being had to the accompanying drawings, making a part 0f this specification, in which Figure 1 is a perspective view 0f my maehine as arranged f01 use. Fig. 2 is a plan x iewof the same,the fnl1 and dotted lines showing different positions of the knife-resb. Fig. 3 is arear elevation 0f said machine, .and

Figs. 4 and 5 2ue respectively sections upon,

lines x x and z z of Fig. 2.

Letters of like name and kind refer 130 1ike parts in each of the figures.

My invention has for ins object an-inerease in -the ease, rapidity, and accuracy With which sickles, knives, and 0ther eutting mechanism 1nay be ground; and 110 this end it eonsists in the construction, arrangement, and eon1binzntion 0f parts, as hereinafter described, and n1ore specifically set fortl1 in the elaims.

In the annexed drawings, A represents a table 012 other similar support, to whioh, ab 0r near one end, is seeured a standard, B, thab from the same extends upward to a suitable height, und. thenee in a curve toward the opposite end 0f seid tab1e, and upon its rearupper end is provided with ai horizontal bearing, b, filmt receives and is inelosed by a sleeve, C, which is heldin position thereon by means of a radially inward-extending set-screw, c.

\Vitahin the ouoer end of the sleeve O is formed a h0110w beiaring, c, which is arranged axia1ly ab a right angle t0 bhe bearing b, and

reeeives and eontains a journal, d, that is for1ned upon bhe upper end of a frame, D. Saidjournal d, ab its npper end, is provided with a screw-thread, d, upon which is a nut, (P, 'that 1imits the downward movement 0f seid frame, and may be raised 01 lowered '00 correspondingly lower or reise seid frame. When adjusted 110 height, S&Id frame is locked in osition by means of a seb-screw, c, which asses radially inwa.rd through the wa11 0f seid. bearing c.

Within the lower end of the fran1e D is a bearing, (P, which axia11y has a right angle t0 the 1ine of sa'1d fran1e, and receives and 0011- tains a shaft, E, ahnt upon one end carries an abtading-wheel, F, and upon its opposite end is provided with a friotion-pulley, G, that is preferably constructed from -elastic materia], and is expanded radially by means 0f longitudinal compression.

In order thab freedom of vertical 1notion may be givn 130 he wheel F within ce1tain limits, the shaft- E 1's jointed ab or near its journal, and imrnediately inside of seid whee1 is eontained within a vertically-elongated opening or bearing, d, which is provided wit-hin the lower end 0f an arm, D, that extends in a curve outward and downward fro1n the side of the frame D.

Upon the pulley side 0f the frzune D, immediately below the journal d, is a laterally-projecting stud, d*, upon which is journaled a whee1, H, thab has such diameter es o0 pause it's plain periphery t0 engage with the periphery of the pu11ey G. A crank-handle, h, projeobing from the outer side of seid whee1, en-

ables ehe Same so be rotated, and by engagement 0f its periphery Wibh said pulley thereby enab1es he shaft E and whee1 F t0 be revolved.

In consequence of the v2mrizflole-friction engagemenb between the driving-wheel and the pu1ley ofthe abrading-wheel shaft, the effective power 0f the abrading-wheel may be gaged, so as to prevent injury o0 the temper of an arbic1e being ground, as any pressure of such artie1e npon said whee1 in exeess of what is safe will eanse aparuia1 0r entire stoppage ofthe rotauion of the 1atter, and consequently lessen or arrest the abrasive aetion. The supportzing-frame as c0nstructed enables the abrading-wheel so be sei: ab any desired angle, or so be variec1 in height above the mahle to sui'u nhe work t0 be done.

In nhe gri1iding 0f sickles f0r harvesters and IOO four feet, and upon each end has pivotecl a cross-bar, K, that extends t0 equal distanees upon eacl1 side of its piv0t-al bearing, is provided ab eaeh en l Wibh a vertical pin, k, and has its upper surface abou one-half ineh above the upper side 0f said table.

Resting upon the cross-bars K is a bar, L,

whieh is somewhatz longer than the bar I, is

provided wibhin its upper face With a l0ngi tudinal groove, I, f01 the reception 0f the back of a sickle-bar, and at its longitudinal center f0nned ab the transverse eenter 0f tl1e table A. A handle, Z, projeeting upward and then rearward fr0m thecenter 0f said bar L, and two elamps, M, attachecl to the npper face ab ehe rear side 0f the sa1ne, e0n1plete ehe clevice, the operation 0f whiehis as f0ll0ws, viz: The pivoted cross-bars K furnish bearings f01 the outer porti0ns 01 the bar L, while the pins k limit the motion 0f said bar L and prevent the Same from beeoming disengaged from said cross-bars. By pivoting the latter tl1ey may be plaeed ab any desiredangle 130 the line 0f the bar I, and when the 1nachine is not in use and is t0 be st0red said bay I 1nay be tnrned nearly into' line With ehe table A, and said cross-bars may in like manner be tnrned into position t0 oceupy the least amount of spaee. A sickle-bar, N, is placed up0n the bar L, with its back resting within the gr00ve Z, and

iS seenred in osition by means 0f the clamps M, after. wlxieh tl1e abrading-wheel F iS.set ab the desirecl angle and eaused 130 revolve, and

said sickle moved beneath the same until one edge of a eutter-seetion has been ground, after whieh said elamps are loosened and said sicklebar moved lengthwise unti1 another cutter-section is in position 150 be operated up0n. The pivoted bar I, with its cross-bars K;permits thebar L, with its l0ad, t-0 be freely swung upon the stud Z, in order 130 bring the arbicle being ground into position, while, in consequence 0f ehe slotted bearing a for sajd stud, said bar L may be readily moved toward 01 from the abrading -wheel '00 per1niu the latter t0 aet along the enoire edge being ground, and will always move in a stmight line.

collar and an adj ustable nnt an l washer, the

M, all eonstruebed ancl combined t0 operate Having ohus fully sei; f0ith the nabure and merits 0f my invention, what I claim as new is l. In a grin(lillg-machine, 11110 driving-shaft of the abrading-wheel, provided With a fixed elastic cylinder 011 ehe sl1aft; between tl1e c0l la1 and Washer, und the wheel provided with a smooth faoe parallel tothe shal't, and adapted 110 rotat-e in contact with the elastie material onthe shafb, substanbially as and for the purpose deseribed.

2. In a grin(ling-machine, the combinati0n of anabrarling-wheel supported within Suitable bearings, means f01 rotating the wheel and f01 adjusting the Same t0 any desired angleand height w1'th relation to the base 0f Ehe machine, a bar for holding the article t0 be ground supportecl als eaeh en l upon supports ab the enrls 0f a pivot;ed bar, np0n whieh it can also slide, and provided witl1 a pin engaging a longitudinal slot in the base, substan tially as shown and deseribed.

3. In combinabion with g1inding mechanism substantially as described, the knife-rcst 00mposed 0f the bar I, pivoted centrally upon the table A, tl1e eross-bars K, pivoted up0n the ends 0f the Same, and provided With the studs k, the bar L, having the longitudinal gr0ove l, pivoted stud l, und handle P, and the clamps substantially as sei; forth.

4. In combination with the grinding mechanism,the knife-resb eonsisting of a bar piv COLIN V. OLAYBOURNE.

Witnesses:

J OI'IN R. WILLIAMS, ALBERT BERGER. 

